Locomotive frame



March 19, 1929. c. a. HARB|$ON LOCOMOTIVE FRAME Filed Sept. 19. l92 '7 5 Sheets-Sheet March-19, 1929. c. a. HARBISON nocorgo'rlvs FRAME Filed Sept. 19. 1927 l I H I c. B. HARBISON LOCOMOTIVE FRAME Filed se .'19. 1927 March 19, 1929.

#170067 Clarnce i curb 226072 Patented Mar, 19, 1929.

runs are CLARENCE B. HARBISON,

F LIMA, OHIO, ASSIGNOR TO THE OHIO STEEL FOUNDRY COMPANY, OF LIMA, (EH10, A CORPORATION .OF OHIO.

LOCOMQTIVE FRAME.

Application filed September 19, 1927. Serial No. 220,349.

This invention relates to improvements in locomotive beds or frames, and has for'its object to provide a new and improved construction wherein the frame is cast in one piece with a novel form of side girders or beams extending longitudinally thereof, and affording an improved arrangement for the spring equalizer rigging. r

The invention may best be understood by reference to the accompanying drawings, in which V I V Figure 1 is a side view of a locomotive frame constructed in accordance with my invention.

Figure 2 is a plan view showing half of the frame, the other half, of course, being similar.

Figure 8 is an enlarged detail plan view of a portion of the frame shown in Figure 2. Figure 4 is an enlarged detail side view of a portion of the frame shown Figure 1.

Figure 5 is a transverse section taken on line 55 of Figure 2. V V

Figure 6 is a transverse section taken on broken line 6-6 of Figure 2.

Figure 7 is a detail transverse sect1on taken on broken line 77 of Figure 2.

Referring now to details shown in the drawings, it will be seen that I employ two continuous girders 1010 spaced symmetrically on each side of the longitudinal center of the locomotive. These girders are generally box-like in cross section, as clearly shown in Figures 5, 6 and 7, and each coinl2-12. The girders are provided further wit l1 recesses 13 13 opening downwardly as usual and forming the pedestals for the driving axles, in the form shown four such pedest-a1 openingsbeing provided.

The two girders1010 are connected by suitable braces cast integral therewith, in the form shown these braces including a rear end sill 14,-, front end sill or bumper l5 and a series of intermediate braces 16-16. These latter braces consist generally of upright webs having horizontally disposed flanges 16-16" as is best shown in Figures 3 and 4. These cross braces, of course, may vary wide-' ly in construction and arrangement from that 'shown herein, dependingvon the design of each locomotive.

lfhe journal boxes for the axles are mounted for vertical movement on the pedestals 1313, and are engaged with spring saddles prising outer walls 1111 and inner walls,

17, 17st their top for connection with the usual spring equalizing rigging.

In my improved construction, a series of openings 20 are provided centrally of the upper wall of pedestal openings 1313, these openings permitting the spring saddles 17 to extend therethrough and into the hollow portion of the girder 10 above eachv of said pedcstal openings 13 where they are-engaged with I the spring equalizing rigging of any suitable form. One form of equalizing'rigging is indicated in dotted lines in Figure 1, from which it will be seen that the springs and equalizer bars are disposed above and betweenthe hollow girders 1010, the equalizer bars having fulcrum bearings 22 in brackets 21+21. However, for convenience in illus-' tration the spring rigging and journal boxes are omitted in the detail Figures 3 to 7, inclusivc, so that the latter may clearly illustrate the novel form and arrangement of the main frame itself, which forms the principal feature of my invention, it being understood that it is not the intention to limit the invention to any specific form of spring eqnalizingrigb v I In the form shown, it will be observed that the rear driver spring may be mounted within the side girder 10 while the three front springs may project above said girders through openings 23-23 formed in the upper wall of said girders. In order to strengthen the girders adjacent 'these open- Y ings 23 23, I provide cross braces fad--24 between the inner and outer walls 12 andll, as clearly shown in Figures 3, 4: and Strengthening flanges 25 25, projectinginwardly from the inner wall 12, may also be provided opposite the openings 20 to 'aid in strengthening the frame at this point.

With the construction above described, it will be observed that the spring saddles and hangers are mounted and guided between the upright walls 11 and 12 of the girder 10 instead of straddling the main girder of the frame as in ordinary constructions. This construction affords an especially light and rigid structure for the main frame vwherein the two side girders of approximately box section are arranged longitudinally substan- .tially in line with the center line of the driv-' ing box journals. Furthermore, the two girders are properly braced to provide sufiicient strength so that in service one frame 'willbe restrained from precedingthe other 1 due to cylinder thrust, and to provide against distortion due to curving of the engine.

It Wlll be obvious that the locomotive bed may zilso have other parts such as brackets.

guide yokes. brake fiilcru i'i, etc, cast integrally therewith, if desired.

While I have illustrated and described the particular embodiment my invention, it Will be understood that I donot WiSll to be limited to the exact construction shown and described but that various changes end modi fiCZLtiODS may be made Without departing from thespirit and scoge of my invention. I claim: 1. A locon'iotive bed formed of piece casting and including a pair of hollow longitudinal girde end cross-braces connecting them er each oi said 5; iers beingof box iike structu e inciudins to) bottom and ide Walls, and hzivi. pedestals formed alongthebottom thereof and provided with apertures in the bottom Wall above said pedestal openings affording the extension of spring rigging into said girder, and reinforcing Webs extending from one side wall to the other shove said apertures.

2. A. locomotive bed formed of a single piece ca. 'ng' and including :1 ps of hollow longitudinal girders and cross braces co11- nee he them together, each oi said girders bei ctn e including top botof box-like u e110. provid- .l above the GIUQGKP girder, and

and rear Wall to the other six of said apertures to p Amt die to pass therebetweeii.

front or ARENcE B. HARBrsom 

